obs-StreamFX/source/obs/obs-source-factory.hpp
Michael Fabian 'Xaymar' Dirks cf398d01da obs/source-factory: Add function to register proxy objects
Proxies allow for older configurations to work fine on newer versions, without having to manually adjust the scene collection to match the new ids at all. Thanks to the migration system we can freely support any number of old versions, as long as we write migration code.
2020-06-21 19:28:10 +02:00

627 lines
20 KiB
C++

/*
* Modern effects for a modern Streamer
* Copyright (C) 2018 Michael Fabian Dirks
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#pragma once
#include "common.hpp"
#include "plugin.hpp"
namespace obs {
template<class _factory, typename _instance>
class source_factory {
protected:
obs_source_info _info = {};
std::map<std::string, std::shared_ptr<obs_source_info>> _proxies;
std::set<std::string> _proxy_names;
public:
source_factory()
{
_info.type_data = this;
_info.get_name = _get_name;
_info.create = _create;
_info.destroy = _destroy;
_info.get_defaults2 = _get_defaults2;
_info.get_properties2 = _get_properties2;
_info.load = _load;
_info.update = _update;
_info.save = _save;
_info.filter_remove = _filter_remove;
set_resolution_enabled(true);
set_activity_tracking_enabled(false);
set_visibility_tracking_enabled(false);
set_input_enabled(false);
set_have_child_sources(false);
}
virtual ~source_factory() {}
protected:
void set_resolution_enabled(bool v)
{
if (v) {
_info.get_width = _get_width;
_info.get_height = _get_height;
} else {
_info.get_width = nullptr;
_info.get_height = nullptr;
}
}
void set_activity_tracking_enabled(bool v)
{
if (v) {
_info.activate = _activate;
_info.deactivate = _deactivate;
} else {
_info.activate = nullptr;
_info.deactivate = nullptr;
}
}
void set_visibility_tracking_enabled(bool v)
{
if (v) {
_info.show = _show;
_info.hide = _hide;
} else {
_info.show = nullptr;
_info.hide = nullptr;
}
}
void set_input_enabled(bool v)
{
if (v) {
_info.mouse_click = _mouse_click;
_info.mouse_move = _mouse_move;
_info.mouse_wheel = _mouse_wheel;
_info.focus = _focus;
_info.key_click = _key_click;
} else {
_info.mouse_click = nullptr;
_info.mouse_move = nullptr;
_info.mouse_wheel = nullptr;
_info.focus = nullptr;
_info.key_click = nullptr;
}
}
void set_have_child_sources(bool v)
{
if (v) {
_info.enum_all_sources = _enum_all_sources;
} else {
_info.enum_all_sources = nullptr;
}
}
void set_have_active_child_sources(bool v)
{
if (v) {
_info.enum_active_sources = _enum_active_sources;
} else {
_info.enum_active_sources = nullptr;
}
}
void finish_setup()
{
if (_info.output_flags & OBS_SOURCE_INTERACTION) {
set_input_enabled(true);
} else {
set_input_enabled(false);
}
if (_info.type == OBS_SOURCE_TYPE_TRANSITION) {
set_resolution_enabled(false);
_info.transition_start = _transition_start;
_info.transition_stop = _transition_stop;
_info.audio_render = _audio_render;
_info.video_tick = _video_tick;
_info.video_render = _video_render;
} else if (_info.type == OBS_SOURCE_TYPE_FILTER) {
switch (_info.output_flags & OBS_SOURCE_ASYNC_VIDEO) {
case OBS_SOURCE_ASYNC_VIDEO:
_info.filter_video = _filter_video;
break;
case OBS_SOURCE_VIDEO:
_info.video_tick = _video_tick;
_info.video_render = _video_render;
break;
}
if ((_info.output_flags & OBS_SOURCE_AUDIO) != 0) {
_info.filter_audio = _filter_audio;
if ((_info.output_flags & OBS_SOURCE_COMPOSITE) != 0) {
_info.audio_render = _audio_render;
}
}
} else {
if ((_info.output_flags & OBS_SOURCE_ASYNC_VIDEO) != 0) {
if ((_info.output_flags & OBS_SOURCE_ASYNC) == 0) {
set_resolution_enabled(true);
}
_info.video_tick = _video_tick;
_info.video_render = _video_render;
}
if ((_info.output_flags & OBS_SOURCE_COMPOSITE) != 0) {
_info.audio_render = _audio_render;
}
}
obs_register_source(&_info);
}
void register_proxy(std::string_view name)
{
auto iter = _proxy_names.emplace(name);
// Create proxy.
std::shared_ptr<obs_source_info> proxy = std::make_shared<obs_source_info>();
memcpy(proxy.get(), &_info, sizeof(obs_source_info));
proxy->id = iter.first->c_str();
proxy->output_flags |= OBS_SOURCE_DEPRECATED;
obs_register_source(proxy.get());
_proxies.emplace(name, proxy);
}
private /* Factory */:
static const char* _get_name(void* type_data) noexcept
try {
if (type_data)
return reinterpret_cast<_factory*>(type_data)->get_name();
return nullptr;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return nullptr;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return nullptr;
}
static void* _create(obs_data_t* settings, obs_source_t* source) noexcept
try {
return reinterpret_cast<_factory*>(obs_source_get_type_data(source))->create(settings, source);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return nullptr;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return nullptr;
}
static void _get_defaults2(void* type_data, obs_data_t* settings) noexcept
try {
if (type_data)
reinterpret_cast<_factory*>(type_data)->get_defaults2(settings);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static obs_properties_t* _get_properties2(void* data, void* type_data) noexcept
try {
if (type_data)
return reinterpret_cast<_factory*>(type_data)->get_properties2(reinterpret_cast<_instance*>(data));
return nullptr;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return nullptr;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return nullptr;
}
private /* Instance */:
static void _destroy(void* data) noexcept
try {
if (data)
delete reinterpret_cast<_instance*>(data);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static std::uint32_t _get_width(void* data) noexcept
try {
if (data)
return reinterpret_cast<_instance*>(data)->get_width();
return 0;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return 0;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return 0;
}
static std::uint32_t _get_height(void* data) noexcept
try {
if (data)
return reinterpret_cast<_instance*>(data)->get_height();
return 0;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return 0;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return 0;
}
static void _activate(void* data) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->activate();
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _deactivate(void* data) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->deactivate();
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _show(void* data) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->show();
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _hide(void* data) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->hide();
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _video_tick(void* data, float seconds) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->video_tick(seconds);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _video_render(void* data, gs_effect_t* effect) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->video_render(effect);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static struct obs_source_frame* _filter_video(void* data, struct obs_source_frame* frame) noexcept
try {
if (data)
return reinterpret_cast<_instance*>(data)->filter_video(frame);
return frame;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return frame;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return frame;
}
static struct obs_audio_data* _filter_audio(void* data, struct obs_audio_data* frame) noexcept
try {
if (data)
return reinterpret_cast<_instance*>(data)->filter_audio(frame);
return frame;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return frame;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return frame;
}
static void _enum_active_sources(void* data, obs_source_enum_proc_t enum_callback, void* param) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->enum_active_sources(enum_callback, param);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _load(void* data, obs_data_t* settings) noexcept
try {
auto priv = reinterpret_cast<_instance*>(data);
if (priv) {
std::uint64_t version = static_cast<std::uint64_t>(obs_data_get_int(settings, S_VERSION));
priv->migrate(settings, version);
obs_data_set_int(settings, S_VERSION, static_cast<std::int64_t>(STREAMFX_VERSION));
obs_data_set_string(settings, S_COMMIT, STREAMFX_COMMIT);
priv->load(settings);
}
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _update(void* data, obs_data_t* settings) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->update(settings);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _save(void* data, obs_data_t* settings) noexcept
try {
if (data) {
reinterpret_cast<_instance*>(data)->save(settings);
obs_data_set_int(settings, S_VERSION, static_cast<std::int64_t>(STREAMFX_VERSION));
obs_data_set_string(settings, S_COMMIT, STREAMFX_COMMIT);
}
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _mouse_click(void* data, const struct obs_mouse_event* event, int32_t type, bool mouse_up,
std::uint32_t click_count) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->mouse_click(event, type, mouse_up, click_count);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _mouse_move(void* data, const struct obs_mouse_event* event, bool mouse_leave) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->mouse_move(event, mouse_leave);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _mouse_wheel(void* data, const struct obs_mouse_event* event, int x_delta, int y_delta) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->mouse_wheel(event, x_delta, y_delta);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _focus(void* data, bool focus) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->focus(focus);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _key_click(void* data, const struct obs_key_event* event, bool key_up) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->key_click(event, key_up);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _filter_remove(void* data, obs_source_t* source) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->filter_remove(source);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static bool _audio_render(void* data, uint64_t* ts_out, struct obs_source_audio_mix* audio_output,
std::uint32_t mixers, std::size_t channels, std::size_t sample_rate) noexcept
try {
if (data)
return reinterpret_cast<_instance*>(data)->audio_render(ts_out, audio_output, mixers, channels,
sample_rate);
return false;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return false;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return false;
}
static void _enum_all_sources(void* data, obs_source_enum_proc_t enum_callback, void* param) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->enum_all_sources(enum_callback, param);
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _transition_start(void* data) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->transition_start();
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static void _transition_stop(void* data) noexcept
try {
if (data)
reinterpret_cast<_instance*>(data)->transition_stop();
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
}
static bool _audio_mix(void* data, uint64_t* ts_out, struct audio_output_data* audio_output,
std::size_t channels, std::size_t sample_rate) noexcept
try {
if (data)
return reinterpret_cast<_instance*>(data)->audio_mix(ts_out, audio_output, channels, sample_rate);
return false;
} catch (const std::exception& ex) {
LOG_ERROR("Unexpected exception in function '%s': %s.", __FUNCTION_NAME__, ex.what());
return false;
} catch (...) {
LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return false;
}
public:
virtual const char* get_name()
{
return "Not Yet Implemented";
}
virtual void* create(obs_data_t* settings, obs_source_t* source)
{
return reinterpret_cast<void*>(new _instance(settings, source));
}
virtual void get_defaults2(obs_data_t* data) {}
virtual obs_properties_t* get_properties2(_instance* data)
{
return nullptr;
}
};
class source_instance {
protected:
obs_source_t* _self;
public:
source_instance(obs_data_t* settings, obs_source_t* source) : _self(source) {}
virtual ~source_instance(){};
virtual std::uint32_t get_width()
{
return 0;
}
virtual std::uint32_t get_height()
{
return 0;
}
virtual void activate() {}
virtual void deactivate() {}
virtual void show() {}
virtual void hide() {}
virtual void video_tick(float_t seconds) {}
virtual void video_render(gs_effect_t* effect) {}
virtual struct obs_source_frame* filter_video(struct obs_source_frame* frame)
{
return frame;
}
virtual struct obs_audio_data* filter_audio(struct obs_audio_data* audio)
{
return audio;
}
virtual void enum_active_sources(obs_source_enum_proc_t enum_callback, void* param) {}
virtual void load(obs_data_t* settings) {}
virtual void migrate(obs_data_t* settings, std::uint64_t version) {}
virtual void update(obs_data_t* settings) {}
virtual void save(obs_data_t* settings) {}
virtual void mouse_click(const struct obs_mouse_event* event, std::int32_t type, bool mouse_up,
std::uint32_t click_count)
{}
virtual void mouse_move(const struct obs_mouse_event* event, bool mouse_leave) {}
virtual void mouse_wheel(const struct obs_mouse_event* event, std::int32_t x_delta, std::int32_t y_delta) {}
virtual void focus(bool focus) {}
virtual void key_click(const struct obs_key_event* event, bool key_up) {}
virtual void filter_remove(obs_source_t* source) {}
virtual bool audio_render(std::uint64_t* ts_out, struct obs_source_audio_mix* audio_output,
std::uint32_t mixers, std::size_t channels, std::size_t sample_rate)
{
return false;
}
virtual void enum_all_sources(obs_source_enum_proc_t enum_callback, void* param) {}
virtual void transition_start() {}
virtual void transition_stop() {}
virtual bool audio_mix(std::uint64_t* ts_out, struct audio_output_data* audio_output, std::size_t channels,
std::size_t sample_rate)
{
return false;
}
};
} // namespace obs